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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1 to 6); 2 (, 1 to 6); 3 (, 1 to 6); 4 (, 1 to 6); 5 (, 1 to 6); 6 (, 1 to 6); 7 (, 1 to 6); 8 (, 1 to 6); 9 (, 1 to 12); 10 (, 1 to 12); 11 (, 1 to 12); 12 (, 1 to 6); 13 (, 1 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1 to 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1 to 6); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 1 to 6); 24 (, 1 to 6); 25 (, 1 to 6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 6); 29 (, 1 to 6); 30 (, 1 to 6); 31 (, 1 to 4 to 6); 32 (, 1 to 6); 33 (, 1 to 6); 34 (, 1 to 6); 35 (, 1 to 6); 36 (, 1 to 6); 37 (, 1 to 5); 38 (, 1 to 6); 39 (, 1 to 6); 40 (, 1 to 6); 41 (, 1, 2 to 4 to 6); 42 (, 1 to 6); 43 (, 1 to 6); 44 (, 1 to 6); 45 (, 1 to 6); 46 (, 1 to 6); 47 (, 1 to 6); 48 (, 1 to 7); 49 (, 1 to 6); 50 (, 1 to 7); 51 (, 1 to 6); 52 (, 1 to 7); 53 (, 1 to 6); 54 (, 1 to 7); 55 (, 1 to 5); 56 (, 1 to 7); 57 (, 1 to 6); 58 (, 1 to 7); 59 (, 1 to 6); 60 (, 1 to 5 to 7); 61 (, 1 to 6); 62 (, 1 to 7); 63 (, 1 to 6); 64 (, 1 to 7); 65 (, 1 to 6); 66 (, 1 to 7); 67 (, 1 to 6); 68 (, 1 to 7); 69 (, 1 to 6); 70 (, 1 to 7); 71 (, 1 to 6); 72 (, 1 to 7); 73 (, 1 to 6); 74 (, 1 to 7); 75 (, 1 to 6); 76 (, 1 to 7); 77 (, 1 to 6); 78 (, 1 to 7); 79 (, 1 to 6); 80 (, 1 to 7); 81 (, 1 to 6); 82 (, 1 to 7); 83 (, 1 to 6); 84 (, 1 to 7); 85 (, 1 to 6); 86 (, 1 to 7); 87 (, 1, 2); 1977; 1978; 1979; 1980; 1981; 1982; 1983; 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Internet Archive
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Preserved
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2025-08-08
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4 to 29
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Portico
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Preserved
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2026-02-12
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Preserved : 1977: 1(1-6), 1978: 2(1-6), 1979: 3(1-6), 1980: 4(1-6), 1981: 5(1-6), 1982: 6(1-6), 1983: 7(1-6), 1984: 8(1-6), 1985: 9(1-12), 1986: 10(1-12), 1987: 11(1-12), 1988: 12(1-6), 1988: 13(1-6), 1989: 14(1-6), 1989: 15(1-6), 1990: 16(1-6), 1990: 17(1-6), 1991: 18(1-6), 1991: 19(1-6), 1992: 20(1-6), 1992: 21(1-6), 1993: 22(1-6), 1993: 23(1-6), 1994: 24(1-6), 1994: 25(1-6), 1995: 26(1-6), 1995: 27(1-6), 1996: 28(1-6), 1996: 29(1-6), 1997: 30(1-6), 1997: 31(1-6), 1998: 32(1), 1998: 33(1), 1999: 34(1-4), 1999: 35(1-4), 2000: 36(1-4), 2000: 37(1), 2001: 38(1), 2001: 39(1), 2002: 40(1), 2002: 41(1, S 2), 2003: 42(1), 2003: 43(1), 2004: 44(1), 2004: 45(1), 2005: 46(1), 2005: 47(1), 2006: 48(1), 2006: 49(1), 2007: 50(1-7), 2007: 51(1-6), 2008: 52(1-7), 2008: 53(1-6), 2009: 54(1-7), 2009: 55(1-6), 2010: 56(1-7), 2010: 57(1-6), 2011: 58(1-7), 2011: 59(1-6), 2012: 60(1-6, 6, B, 7), 2012: 61(1-6), 2013: 62(1-7), 2013: 63(1-6), 2014: 64(1-7), 2014: 65(1-6), 2015: 66(1-7), 2015: 67(1-6), 2016: 68(1-7), 2016: 69(1-6), 2017: 70(1-7), 2017: 71(1-6), 2018: 72(1-7), 2018: 73(1-6), 2019: 74(1-7), 2019: 75(1-6), 2020: 76(1-7), 2020: 77(1-6), 2021: 78(1-7), 2021: 79(1, S1, 2-6), 2022: 80(1-7), 2022: 81(1, S1, 2-6), 2023: 82(1-7), 2023: 83(1, S1, 2-6), 2024: 84(1-7), 2024: 85(1, S1, 2-6), 2025: 86(1-7), 2025: 87(1, S1, 2-6), 2026: 88(1-3)
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CLOCKSS Archive
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Preserved
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2026-02-09
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9, 15, 17 to 88
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 48 (2-7); 49 (1-6); 50 (1-7); 51 (1-6)
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 3 (1 to 6); 4 (1 to 6); 5 (1 to 7); 6 (1 to 7); 7 (1 to 7); 8 (1 to 7); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (S2, 1, 2 to 4 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 7); 49 (1 to 6); 51 (1 to 6); 52 (1 to 7); 53 (, 1 to 6); 54 (1 to 7); 55 (1 to 6); 56 (1 to 7); 57 (, 1 to 6); 58 (1 to 7); 59 (1 to 6); 61 (, 1 to 6); 62 (1 to 7); 63 (1 to 6); 64 (1 to 7); 65 (1 to 6); 66 (1 to 7); 67 (1 to 6); 68 (1 to 7); 69 (1 to 6); 71 (1 to 6); 72 (1 to 7); 73 (1 to 6); 74 (1 to 7); 75 (1 to 6); 76 (1 to 7); 77 (1 to 6); 78 (1 to 7); 79 (S1, 1 to 6); 81 (S1, 1 to 6); 82 (1 to 7); 83 (1 to 6); 84 (1, 3 to 7); 85 (S1, 1 to 6); 86 (1 to 6); 87 (S1, 1 to 3)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 3 (1 to 6); 4 (1 to 6); 5 (1 to 7); 6 (1 to 7); 7 (1 to 7); 8 (1 to 7); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (S2, 1, 2 to 4 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 7); 49 (1 to 6); 51 (1 to 6); 52 (1 to 7); 53 (, 1 to 6); 54 (1 to 7); 55 (1 to 6); 56 (1 to 7); 57 (, 1 to 6); 58 (1 to 7); 59 (1 to 6); 61 (, 1 to 6); 62 (1 to 7); 63 (1 to 6); 64 (1 to 7); 65 (1 to 6); 66 (1 to 7); 67 (1 to 6); 68 (1 to 7); 69 (1 to 6); 71 (1 to 6); 72 (1 to 7); 73 (1 to 6); 74 (1 to 7); 75 (1 to 6); 76 (1 to 7); 77 (1 to 6); 78 (1 to 7); 79 (S1, 1 to 6); 81 (S1, 1 to 6); 82 (1 to 7); 83 (1 to 6); 84 (1, 3 to 7); 85 (S1, 1 to 6); 86 (1 to 6); 87 (S1, 1 to 4)
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